MARKET WIRE -- After 50 years and billions of pancakes flipped and served, IHOP, one of America’s favorite restaurants, today announced that for the first time in the company’s half century of operation, it has restaurants open in all 50 U.S. states. This milestone is a result of the opening of its newest restaurant in South Burlington, Vt., introducing IHOP’s classic blend of breakfast, lunch and dinner to the Green Mountain State.